<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
    <head>
        <title> 登录 </title>
    </head>
    <body>
        <div th:if="${param.error}">
            用户名或者密码错误.
        </div>
        <div th:if="${param.logout}">
            你已经登出.
        </div>
        <form th:action="@{/admin/login}" method="post">
        	<input type="hidden"  th:name="${_csrf.parameterName}" th:value="${_csrf.token}"/>
            <div><label> 用户名 : <input type="text" name="username"/> </label></div>
            <div><label> 密码: <input type="password" name="password"/> </label></div>
            <div><input type="submit" value="登录"/></div>
        </form>
    </body>
</html>